You just need a spectrum analyzer. The signal source would be the birds.
I forget who claimed the GPS signals are beneath the thermal noise. I'm
quite sure I could see them on my spectrum analyzer and will check this
weekend.
These work fine if all you need is L-band:
http://www.ebay.com/itm/AVCOM-PSA-45D-PORTABLE-SPECTRUM-ANALYZER-L-BAND-/110838378615?pt=BI_Analyzers&hash=item19ce7b7077
You will find two vendors on Ebay. I think I mentioned the story before.
Just get the cheap one and check it out immediately. They have a few
hundred, so you can get a swap if it doesn't work. Expect to spend $50
to rebuild the Lion pack. Even then, the unit drains the pack in a few
days if you don't use it right away. None of the units have ethernet
unfortunately. I paid $40 more for my unit than the price listed in the
ad, and was supposed to get ethernet, but it never materialized. I'm
going to bug the guy to send me a junker unit since I paid extra and
didn't get what was advertised. The current advert doesn't mention
ethernet. I manged to get a serial port card from the vendor. It has the
ethernet traces on the PCB, but not populated.
Don't expect a lot of frequency accuracy. This is not HP. It is
technician gear.
The units are pulls from mil gear and were rack mounted at one point. No
feet, bail, or case included. Avcom still exists, but their accessories
are quite expensive.
On 4/13/2012 4:44 PM, paul swed wrote:
Yes indeed I think its quite challenge to really know whats up.
Though if you have sig gen and spectrum analyzer you could come up with a
method for at least cw
On Fri, Apr 13, 2012 at 6:08 PM, J. L. Trantham<[email protected]> wrote:
Mine arrived in the same manner. It works but I can't tell any real
difference between it and my 26 dB antenna, switching between them when
mounted on the corner of the roof of my workshop.
Joe
-----Original Message-----
From: [email protected] [mailto:[email protected]] On
Behalf Of Steve Krull
Sent: Friday, April 13, 2012 1:40 PM
To: [email protected]
Subject: Re: [time-nuts] Lucent 40 dB Antenna
Just got mine, from "Just_for_survive" on eBay. Poorest packing job I've
ever seen for an international package. Three wraps of newsprint and a
thin padded envelope. I'll know this weekend if its operational.
Steve
On Tue, Apr 10, 2012 at 11:14 PM, Chuck Forsberg WA7KGX N2469R wrote:
My Lucent antenna arrived today. I scrounged some adapters
and connected it to my Thunderbolt. Two birds were visible
with AMU> 4 when I held the antenna. My Droid 3 could not
see any birds through the wet roof.
The unit has some dings and scrapes but no visible corrosion.
I am tempted to take it apart but don't wish to break a unit
which seems to be working well.
Has anyone compared this antenna with the mushroom that
came from China with the used Thunderbolts???
--
Chuck Forsberg WA7KGX N2469R [email protected] www.omen.com
Developer of Industrial ZMODEM(Tm) for Embedded Applications
Omen Technology Inc "The High Reliability Software"
10255 NW Old Cornelius Pass Portland OR 97231 503-614-0430
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